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- W44003398 abstract "The complexity of the sloshing analysis for liquefied natural gas carriers is usually reduced by neglecting the pump tower. This study examines the effect of the pump tower, located near the aft bulkhead of an LNG tank, on the sloshing flow evolution by comparing the results of surge-induced sloshing in a rectangular tank with pump tower to a clean 3D and 2D tank using an inhomogeneous multiphase CFD model implemented in the commercial CFD code ANSYS CFX-11. The results are validated against experimental data. A simplified pump tower consisting of a single vertical tube is developed using the total fluid force on a real pump tower, which reduces the required mesh size by an order of magnitude. The simplified pump tower is included in the sloshing simulation. It is found that the effect of the pump tower on the sloshing flow is small. Reductions of impact pressures by up to 50% are observed and the sloshing flow with the simplified pump tower develops a lag compared to the clean tank. The inclusion of a simplified pump tower in the CFD simulation gives a force history similar to the Morison equation with the flow field from the clean tank." @default.
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- W44003398 date "2008-03-26" @default.
- W44003398 modified "2023-09-26" @default.
- W44003398 title "The Effect of an Internal Pump Tower on Fluid Sloshing in a Rectangular Container" @default.
- W44003398 doi "https://doi.org/10.3940/rina.cfd.2008.16" @default.
- W44003398 hasPublicationYear "2008" @default.
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